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55 lines
3.5 KiB
Markdown
55 lines
3.5 KiB
Markdown
# Configuring your DNS server
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To set up Matrix on your domain, you'd need to do some DNS configuration.
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To use an identifier like `@<username>:<your-domain>`, you don't actually need
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to install anything on the actual `<your-domain>` server.
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## General outline of DNS settings you need to do
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| Type | Host | Priority | Weight | Port | Target |
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| ----- | ----------------------- | -------- | ------ | ---- | ---------------------- |
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| A | `matrix` | - | - | - | `matrix-server-IP` |
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| CNAME | `riot` | - | - | - | `matrix.<your-domain>` |
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| SRV | `_matrix._tcp` | 10 | 0 | 8448 | `matrix.<your-domain>` |
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| SRV | `_matrix-identity._tcp` | 10 | 0 | 443 | `matrix.<your-domain>` |
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The `_matrix._tcp` SRV record is a temporary measure and will not be necessary in the near future.
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In fact, it will have to be removed at some point. To learn more about that, read below.
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## Subdomains setup
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As the table above illustrates, you need to create 2 subdomains (`matrix.<your-domain>` and `riot.<your-domain>`) and point both of them to your new server's IP address (DNS `A` record or `CNAME` record is fine).
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The `riot.<your-domain>` subdomain is necessary, because this playbook installs the Riot web client for you.
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If you'd rather instruct the playbook not to install Riot (`matrix_riot_web_enabled: false` when [Configuring the playbook](configuring-playbook.md) later), feel free to skip the `riot.<your-domain>` DNS record.
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## `_matrix._tcp` SRV record setup (temporary requirement)
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All services created by this playbook are meant to be installed on their own server (such as `matrix.<your-domain>`).
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To use a Matrix user identifier like `@<username>:<your-domain>` while hosting services on `matrix.<your-domain>`, we need to instruct the Matrix network of such a delegation/redirection by means of setting up a DNS SRV record.
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The SRV record should look like this:
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- Name: `_matrix._tcp` (use this text as-is)
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- Content: `10 0 8448 matrix.<your-domain>` (replace `<your-domain>` with your own)
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A [new file-based mechanism for Federation Server Discovery](configuring-well-known.md#introduction-to-federation-server-discovery) is superseding the `_matrix._tcp` SRV record. **During the transition phase, you'll need to set up both mechanisms**. We'll instruct you how to set up the file-based mechanism after the [installation phase](installing.md) for this playbook.
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Doing delegation/redirection of Matrix services using a DNS SRV record (`_matrix._tcp`) is a **temporary measure** that is only necessary before Synapse v1.0 is released.
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As more and more people upgrade to the Synapse v0.99 transitional release and just before the final Synapse v1.0 gets released, at some point in the near future **you will need to remove the `_matrix._tcp` SRV record** and leave only the [new file-based mechanism for Federation Server Discovery](configuring-well-known.md#introduction-to-federation-server-discovery) in place.
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## `_matrix-identity._tcp` SRV record setup
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To make the [mxisd](https://github.com/kamax-io/mxisd) Identity Server (which this playbook installs for you) be authoritative for your domain name, set up one more SRV record that looks like this:
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- Name: `_matrix-identity._tcp` (use this text as-is)
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- Content: `10 0 443 matrix.<your-domain>` (replace `<your-domain>` with your own)
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When you're done with the DNS configuration and ready to proceed, continue with [Configuring this Ansible playbook](configuring-playbook.md).
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